Improvement in pumps



G. W. DAWSON;

Pump,

Patented-Nov. 18,1879.

No. 221,794.i

a www N. PETERS. PHOTO-LITHOGRAPN 'shown,) in the usual manner.

UNITED STATESPATENT OFFICE.

GEORGE W. DAWSON, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO EVALD OVER, OF SAME PLACE.

IMPROVEMENT iN PUMPS.

Specification forming part of Letters Patent No. 22L79/1, dated November 18, 1879; applica-tion iiled September 27, 1879.

To all whomtt may concern:

Be it known that I, Geenen W. DAwsoN, ot' Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improvement in Pumps, otwhichv the following is a description, reference being had to the accompanying drawings.

Prior to my invention, stone, baked clay, glass, and metallic cylinders have been secured between the anges in various ways; but I am not aware that they have been secured in the manner hereinafter described.

The object of my invention is to secure the cylinder between the iianges.

My invention consists, mainly, in the new construction and arran gement of devices, and in the new combination of elements, as will he hereinafter rst fully described in the speciiication, and then set forth in the claims.

In the accompanying drawings, in which like letters of reference in the diii'erent iigures indicate like parts, Figure 1 represents a perspective View of a pumpcylinder embodying my invention. Fig. 2 is a top or plan-view of the cap. Fig. 3 isa sectional view of the pumpcylinder, cap, top, and bottom iian ges, and Fi 4 is a modited form of the cap.

A represents the pump-cylinder; B, the top ange; O, the lower flange. Each of these anges is provided with a hub' or boss, ,H and J, into which the connecting-pipes are screwed, 'the pipe P extending upward and provided with a pump-handle and spout, (not A pipe (not shown) also connects the lower liange (l with the water.

The upper cap, D, is provided with an opening, K, in the center, to lit loosely over the boss H of the upper flange, B. rllhe cap D is further provided with two or more set-screws, Gr, operating in screw-threaded holes g, and a series of two or more recesses, fj, for the curved ends a of the clampsE to restin. The

lower ange, C, is also provided with correspondm g recesscsf i'i'or the lower curved ends,A

a', of the clamps E to rest in. The clamns E are iiat or curved bars of metal, having their upper and. lower ends bent into curves or hooks, as shown at a a, Figs. 1 and 3. Having thus described the several parts of my invention, I will now describe the mode otl securing the several parts together, to wit: rIhe loweriiange, O, is iirst itted with a gasket, X, after which the cylinder A is inserted. The upper flange, B, is then placed on the upper end of the cylinder, with the. gasket X between them. The cap l) is then placed over the iiz'inge B, and the lower ends, a', of the clamps E E E are hooked into the recesses j" of the iiange C, and also into the recesses/"of the cap l). The set-screws Gr G are then tightened up, thus forcing the iial'iges l5 and O tightly in contact with the gaskets X X and cylinder, thereby securing the cylinder in apermanent manner, as shown in Fig 1.

The cap D and Hanges B O may be provided with recesses m on the sides to hold the clamps from slipping, as shown in Fig. 4f.

What I claim as new, and desire to secure by Letters Patent, is-

1. The iiange O, with two or more recesses, j", or projections in its lower face, combined with the clamp-rods E, having bent ends a a',

the cap D, also provided with recesses j', and set-screws Gr, the auge B, and cylinder A, as and for the purpose specified.

2. The cap l), provided with two or more reeesses,f, or projections on its upper surface to receive and hold the curved ends a of t-hc clamps E, and further provided with setscrews Gr, for the purpose of tightening Athe clamps and clamping the anges B U to the cylinder, as shown and described.

In testimony whereofI have signed my name to this specitication in the presence ot' two subscribing' witnesses.

GEO. lV. DAWSON.

Vitnesses:

F. 0. Finns, G. A. BENNETT. 

